Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | HCID 67357512 | HCID 67357512 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 67357605 | HCID 67357605 | 70% |
Reaction Steps
Methyl (3S,4R)-4-(4-chlorophenyl)-1-(6-oxo-1,6-dihydropyridazin-3-yl)pyrrolidine -3-carboxylate obtained in Step A of Preparation 22 was dissolved in DMF (5 ml). Cs2CO3 (1.11 g, 3.41 mmol) was added, and methyl iodide (0.71 mL, 11.40 mmol) was added dropwise. The reaction mixture was stirred at 20-30° C. for 2 hours and concentrated in vacuo. The obtained residue was diluted with EtOAc, washed with water and purified by column chromatography (eluent: EtOAc/Hex=1/1) to give the title compound (0.55 g, 70%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08183243B2 |
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| Source dataset | uspto-grants-2012_05 |
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| ORD ID | ord-83a05940f47542799c84c3e71ca652bb |
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| Source note | uspto-grants-2012_05 |
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